Kos

Kos (Kosai, Inc.) builds what it calls the world's first virtual finance employee: an AI agent given its own workstation, org identity, software licenses, RBAC and audit logs, which completes finance and back-office workflows for capital- and inventory-heavy operators across datacenters, defense, energy, long-lead equipment, space and contracting. Kos reviews pay applications and vendor invoices line-by-line against GMP contracts, catching missing backup, overbills and calculation errors; generates, routes and closes out purchase orders inside a customer's ERP; and is taught new workflows over screenshare like a new hire. It is reached over email, Slack, Teams, phone and Zoom rather than through a UI, app or public API. Founded by Tanuj and Mani, who met as graduate researchers at Stanford under Sachin Katti; backed by 8VC, XYZ Ventures, MVP Ventures and Launch, with advisors including former Equinix CFO Keith Taylor. Headquartered in San Francisco, California.

Kos is profiled on the APIs.io network. Tagged areas include Company, Artificial Intelligence, AI Agents, Agentic Workflows, and Finance.

Kos’ developer surface includes engineering blog and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub

9.3/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyArtificial IntelligenceAI AgentsAgentic WorkflowsFinanceAccounts PayableEnterprise SoftwareData CentersInfrastructure

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 9.3/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.4 / 20

Commercial Clarity 2.1 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/kos: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 1

Portal, sign-up, and the first successful call

Demo

Demo

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Learn 1

Tutorials, courses, talks, and written guidance

Video

Video

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

Blog

Blog

Careers

Careers

Source (apis.yml)

aid: kos
name: Kos
description: 'Kos (Kosai, Inc.) builds what it calls the world''s first virtual finance employee: an AI agent given its own
  workstation, org identity, software licenses, RBAC and audit logs, which completes finance and back-office workflows for
  capital- and inventory-heavy operators across datacenters, defense, energy, long-lead equipment, space and contracting.
  Kos reviews pay applications and vendor invoices line-by-line against GMP contracts, catching missing backup, overbills
  and calculation errors; generates, routes and closes out purchase orders inside a customer''s ERP; and is taught new workflows
  over screenshare like a new hire. It is reached over email, Slack, Teams, phone and Zoom rather than through a UI, app or
  public API. Founded by Tanuj and Mani, who met as graduate researchers at Stanford under Sachin Katti; backed by 8VC, XYZ
  Ventures, MVP Ventures and Launch, with advisors including former Equinix CFO Keith Taylor. Headquartered in San Francisco,
  California.'
url: https://raw.githubusercontent.com/api-evangelist/kos/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://cdn.prod.website-files.com/693848b70de88417d240f967/69e5c1a9c83db668e253985d_webclip.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- 8vc
- XYZ Ventures
- MVP Ventures
- Launch
x-tier: profiled
x-tier-reason: enriched-no-public-api
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Artificial Intelligence
- AI Agents
- Agentic Workflows
- Finance
- Accounts Payable
- Enterprise Software
- Data Centers
- Infrastructure
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://kos.ai
- type: Blog
  url: https://www.kos.ai/blog
- type: PrivacyPolicy
  url: https://www.kos.ai/privacy
- type: Careers
  url: https://www.kos.ai/careers
- type: Demo
  url: https://www.kos.ai/demo
- type: Video
  url: https://www.youtube.com/watch?v=J3QME5Xziuk
- type: DomainSecurity
  url: security/kos-domain-security.yml
- type: LLMsTxt
  url: llms/kos-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Kos